// This function is used to add folders to the hierarchy from the root.
public Folder AddFolder(string folderName, string folderId, string folderParentId, FolderType folderType)
{
if (id != "0")
{
throw new Exception("This function is only valid on root folders.");
}
// Check if a folder with this ID already exists
Folder existingFolder = FindFolderById(folderId);
if (existingFolder != null)
{
// If a folder with that Id, name, parent, and type already exist,
// just return it instead of creating a new one.
if (existingFolder.Name == folderName &&
existingFolder.ParentFolder.Id == folderParentId &&
existingFolder.Type == folderType)
{
return(existingFolder);
}
else
{
// There should never be two folders with the same Id, so
// throw an exception.
string exceptionString = string.Format(
"A folder with the Id = {0} already exists. Name = {1}, ParentId = {2}, Type = {3}.",
folderId,
existingFolder.Name,
existingFolder.ParentFolder.Id,
existingFolder.Type);
throw new ArgumentException(exceptionString);
}
}
// The folder does not already exist, so find the parent.
Folder parentFolder = FindFolderById(folderParentId);
if (parentFolder == null)
{
throw new Exception(string.Format("Invalid parent folder Id: {0}", folderParentId));
}
// Add a new subfolder to the parent.
return(parentFolder.AddSubFolder(folderName, folderId, folderType));
}
// This function updates an existing folder by either
// renaming it or moving it.
public void Update(string folderName, Folder newParent, Folder.FolderType folderType)
{
// Set the new name
name = folderName;
// Check to see if we are moving the folder.
if (newParent != parentFolder)
{
// Remove this folder from the current parent's
// subfolders
parentFolder.RemoveSubFolder(this);
parentFolder = newParent;
// Add this folder to the new parent's subfolders
newParent.AddSubFolder(this);
}
// Call MoveLocalFolder to move the local data to a new
// directory.
MoveLocalFolder(newParent.SaveLocation + "\\" + name);
}
// This function updates an existing folder by either
// renaming it or moving it.
public void Update(string folderName, Folder newParent, Folder.FolderType folderType)
{
// Set the new name
name = folderName;
// Check to see if we are moving the folder.
if (newParent != parentFolder)
{
// Remove this folder from the current parent's
// subfolders
parentFolder.RemoveSubFolder(this);
parentFolder = newParent;
// Add this folder to the new parent's subfolders
newParent.AddSubFolder(this);
}
// Call MoveLocalFolder to move the local data to a new
// directory.
MoveLocalFolder(newParent.SaveLocation + "\\" + name);
}
